The monograph examines and develops theoretical and methodological issues of modern approaches to the generalization of historical and scientific material and the problems of classification of fields of scientific knowledge. Methodological recommendations based on the positions of the general theory of systems concerning the issues of periodization and classification of research in the field of the history of science and technology are formulated. The results of generalization and classification of a wide range of historical and scientific material on the history of infocommunications and radio technologies in the Black Sea Fleet and in the Crimea for 115 years (from the first experiments of A.S. Popov in the Black Sea Fleet to the return of Crimea to the Russian Federation) are presented. It will be useful to historians of science and technology, as well as to anyone interested in the history of the development of infocommunications and radio technologies in the Black Sea Fleet and in the Crimea.